Study of 18FFAPI PETCT and Laparoscopy to Improve Staging and Treatment Decisions in Advanced Gastric Cancer

What this Trial Is About

Researchers are studying a new type of scan called FAPI-PETCT to see how well it detects metastases in patients with advanced gastric cancer. The study aims to find out if this scan can better identify cancer spread, leading to changes in treatment plans such as avoiding unnecessary surgeries or shifting to comfort-focused care. It also evaluates whether the scan causes less burden for patients compared to current methods. Participants will receive the standard care for gastric cancer and undergo one additional FAPI-PETCT scan, where a small amount of 18F-FAPI-74 is given intravenously about 60 minutes before a PETCT scan lasting around 20 minutes. The results from this scan will help doctors decide on further tests or surgery needed. The study monitors changes in diagnosis and treatment decisions based on the scan. During the study, participants will complete questionnaires taking about 4 hours total and spend approximately 2 hours for the extra scan. Researchers will measure outcomes such as changes in treatment intent, diagnostic work-up, scan accuracy, incidental findings, patient burden, quality of life, and safety over about one year. Follow-up includes quality of life assessments and cost evaluations at multiple time points after staging.

[18F]F-FAPI PET/CT and Laparoscopy in Staging Advanced Gastric Cancer